Inspect Commutator For Dirty And Burnt Surfaces

If surface is dirty or burnt, correct with sandpaper (No.400) or a lathe.

CHECK COMMUTATOR RUNOUT Maximum circle runout: 0.4 mm (0.016 in.)

If runout is greater than maximum, correct with a lathe.

MEASURE DIAMETER OF COMMUTATOR Standard diameter: 28 mm (1.10 in.) Minimum diameter: 27 mm (1.06 in.) If the diameter of the commutator is less than minimum, replace the armature.

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Simple Car Care Tips and Advice

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